Ecotoxicological Effects of an Arsenic Remediation Method on Three Freshwater Organisms - Lemna disperma, Chlorella sp. CE-35 and Ceriodaphnia cf. dubia

Azizur Rahman, M; Hogan, B; Duncan, E; Doyle, C; Rahman, MM; Nguyen, TV; Lim, RP; Maher, W; Naidu, R; Krassoi, R; Vigneswaran, S; Hassler, C

Ecotoxicological Effects of an Arsenic Remediation Method on Three Freshwater Organisms - Lemna disperma, Chlorella sp. CE-35 and Ceriodaphnia cf. dubia

Azizur Rahman, M

Hogan, B Duncan, E Doyle, C Rahman, MM Nguyen, TV

Lim, RP Maher, W Naidu, R Krassoi, R Vigneswaran, S

Hassler, C

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Publication Type:: Journal Article
Citation:: Water, Air, and Soil Pollution, 2015, 226 (12), pp. 1 - 10
Issue Date:: 2015-12-01

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Field	Value	Language
dc.contributor.author	Azizur Rahman, M https://orcid.org/0000-0002-8065-0286	en_US
dc.contributor.author	Hogan, B	en_US
dc.contributor.author	Duncan, E	en_US
dc.contributor.author	Doyle, C	en_US
dc.contributor.author	Rahman, MM	en_US
dc.contributor.author	Nguyen, TV https://orcid.org/0000-0003-3893-1217	en_US
dc.contributor.author	Lim, RP	en_US
dc.contributor.author	Maher, W	en_US
dc.contributor.author	Naidu, R	en_US
dc.contributor.author	Krassoi, R	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Hassler, C	en_US
dc.date.issued	2015-12-01	en_US
dc.identifier.citation	Water, Air, and Soil Pollution, 2015, 226 (12), pp. 1 - 10	en_US
dc.identifier.issn	0049-6979	en_US
dc.identifier.uri	http://hdl.handle.net/10453/41473
dc.description.abstract	© 2015 Springer International Publishing Switzerland. Chemical methods have been used for the remediation of arsenic (As)-contaminated water; however, ecological consequences of these methods have not been properly addressed. The present study evaluated the effects of the Fe-oxide-coated sand (IOCS) remediation method on As toxicity to freshwater organisms (Lemna disperma, Chlorella sp. CE-35, and Ceriodaphnia cf. dubia). The As removal efficiency by IOCS decreased substantially with time. The IOCS remediation method was less effective at suppressing the toxicity of AsV than AsIII to L. disperma but was highly effective in reducing both the AsIII and AsV toxicity to C. cf. dubia. The growth of Chlorella sp. was significantly higher (p < 0.05) in remediated and pre-remediated water than in controls (non-As-contaminated filtered Colo River water) for AsIII, while the opposite was observed for AsV, indicating that AsV is more toxic than AsIII to this microalga. Although the IOCS can efficiently remove As from contaminated water, residual As and other constituents (e.g. Fe, nitrate) in the remediated water had a significant effect on freshwater organisms.	en_US
dc.relation.ispartof	Water, Air, and Soil Pollution	en_US
dc.relation.isbasedon	10.1007/s11270-015-2668-z	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.title	Ecotoxicological Effects of an Arsenic Remediation Method on Three Freshwater Organisms - Lemna disperma, Chlorella sp. CE-35 and Ceriodaphnia cf. dubia	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.citation.volume	226	en_US
utslib.for	039901 Environmental Chemistry (incl. Atmospheric Chemistry)	en_US
utslib.for	060204 Freshwater Ecology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.issue	12	en_US
pubs.publication-status	Published	en_US
pubs.volume	226	en_US

Abstract:

© 2015 Springer International Publishing Switzerland. Chemical methods have been used for the remediation of arsenic (As)-contaminated water; however, ecological consequences of these methods have not been properly addressed. The present study evaluated the effects of the Fe-oxide-coated sand (IOCS) remediation method on As toxicity to freshwater organisms (Lemna disperma, Chlorella sp. CE-35, and Ceriodaphnia cf. dubia). The As removal efficiency by IOCS decreased substantially with time. The IOCS remediation method was less effective at suppressing the toxicity of AsV than AsIII to L. disperma but was highly effective in reducing both the AsIII and AsV toxicity to C. cf. dubia. The growth of Chlorella sp. was significantly higher (p < 0.05) in remediated and pre-remediated water than in controls (non-As-contaminated filtered Colo River water) for AsIII, while the opposite was observed for AsV, indicating that AsV is more toxic than AsIII to this microalga. Although the IOCS can efficiently remove As from contaminated water, residual As and other constituents (e.g. Fe, nitrate) in the remediated water had a significant effect on freshwater organisms.

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http://hdl.handle.net/10453/41473